Paper-making machine.



'PATENTED APR. 7, 1903.

J.F.OBERT. PAPBRMAKING MACHINE.

APPLICATION FILE-D DEC. 15, 1902.

' N0 MODEL.

UNITED STATES PATE T OFFICE.

JOSEPH F. OBERT, OF MILLOREEK, PENNSYLVANIA.

PAPER-MAKING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 724,732, dated April '7, 1903.

Application filed December 15, 1902. Serial No. 135,267- (No model.)

To all whom it may concern: 7

Be it known that I, JOSEPH F. OBERT, a citizen of the United States, residing at Millcreek, in the county of Erie and State of Pen nsylvania, have invented new and useful Improve-- ments in Paper-Making Machines, of which the following is a specification.

This invention relates to paper-making machines; and it consists in. certain improvements in the construction thereof, as will be hereinafter fully described, and pointed out in the claims.

Heretofore there has been used in paper-.

is mounted in the bracket e tor for keeping the rolls clear of any material that may be taken up by the rolls as the paper is passed through them in the process of manufacture. Heretofore no provision has been made for taking care of the accumulation on the doctor, so thatit required constant attention to prevent droppings from the accumulation onto the incoming sheet.' Such dropping injures the roll, the product, and the web carrying the product, and such accumulations on the roll give it such weight as to injure the roll. To obviate this difliculty is among the objectsof this invention.

The invention is illustrated in the accompanying drawings, as followsi Figure 1 shows a perspective view of my preferred construction; Fig. 2, a side elevation, partly in section, of an alternative construction.

A A mark the rolls, and the broken lines B B the line of paper upon which the rolls are arranged to operate. The doctor 0 is arranged in its usual position, so as to prevent anything carried up by the upper roll from passing around and into the nip. Immediately back of the doctor-is atrough, into which accumulations on the doctor pass. A conveyer E of any desired construction is arranged in the trough. I prefer, however, the construction shown in Fig. 1, wherein the conveyer is in the form of a belt 6. This belt is carriedat one end by the spool e. The spool The opposite end of the belt is carried by the spool 6 carried by the bracket 6 The spool e is driven by the gear 6 which is driven by the gear 6 These are driven from the shaft 6 and the driving-pulley e, which may be run from any convenient source of power. I prefer providing the rear of the trough with the elevated side E to prevent any accumulation dropping over the back of the trough.

I prefer that the doctor and conveyer be arranged on one frame. These are carried by the trunnions E E.

The operation of the device can be readily understood from the drawings. The matter accumulating on thedoctor 0 passes on to the conveying-belt e and is carried to the side of the machine and dropped. In this manner any accumulation is prevented, and consequently there can be no dropping on the incoming paper. Furthermore, the weight of the doctor is kept substantially uniform.

In the alternative construction shown in Fig. 2 the doctor 0 has the apron O extending from it and is supported by the trunnion 0 The conveyer E is arranged in a separate frame E from'that of the doctor. Its purpose and general operation are the same as that of the construction shown in Fig. 1.

What I claim as new is V 1. In a paper-making machine, the combination with the rolls and a doctor thereon, said doctor being arranged'out of the normal path of the paper; of a conveyer arranged to remove the matfier caught by the doctor and I to carry the matter socaught away from the ,paper passing through said rolls.

2. In a paper-making machine, the combination with the rolls and a doctor thereon; of a conveyor carried with the doctor and arranged to remove the matter caught by the doctor.

' 3. In a paper-making machine, the combination with the roll A of the doctor 0; the trough D; the conveyer arranged in the trough; the trunnions E E supporting the trough and doctor.

4:. In a paper-making machine, the combination of the roll A; the doctor 0 arranged thereon; the trough D; thebelt conveyer E arranged in the trough; and the trunnions E E for carrying the trough, conveyer and doctor.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOSEPH F. OBERT.

Witnesses:

F. PERCY KLUND, H. O. LORD. 

